Evidence and Consequences of Ce$^{4+}$ in LYSO:Ce,Ca and LYSO:Ce,Mg Single Crystals for Medical Imaging Applications

Lu 2(1-x) Y 2x SiO 5 :Ce (10 at% Y) single crystals co-doped with Ca 2+ and Mg 2+ were prepared by the Czochralski technique. It is shown that co-doping leads to significant improvements of the scintillation performances. Afterglow following X-ray excitation is reduced down to 200 ppm after 20 ms an... View More